I’m very interested in learning how computers work, but can’t seem to find the exact information I’m looking for. My understanding is, and **please** correct me if I’m wrong, is that if you press the letter “A” on a keyboard, a circuit underneath will close which sends electricity to wires, and based on the combination of voltages on the wires, the computer outputs an “A”. But how does the computer know what do to with voltages? What do the voltages represent? At what point does any of this information get converted into binary, and once it does, what happens?
I don’t expect someone to be able to explain this like I’m five. For me, it’s a difficult, but really interesting subject. Any clarification and dumbing down is appreciated! I’m really hoping to get a better grasp on my understanding of all this.
Edit: I should’ve made the title “How do computers work?” Still wondering how computers know what to do with 1’s and 0’s, though.
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How much time do you have? I’m writing a book that will take you step by step using only the assumption that you know opposites attract and ending with a functioning CPU. Honestly, though, I’m still working on visual aids so it’s gonna be tough for some parts. What would be a lot better is watching Ben Eater’s videos on YouTube. He has a few dozen long-format videos that start with how transistors work and ends with an actual, functioning CPU that he builds on camera out of logic gates, explaining every step. No way you’ll get better than that without going to college for an electronics degree.
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